Patents-Review.com
ClassID:

173370 ⎘

G01V5/108 - CPC Classification

Classification description:

Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using neutron sources and detecting reflected or back-scattered neutrons the neutron source being of the pulsed type

Recent Application in this class:
#1
20260079279
2026-03-19

TIME-GATED ENERGY SPECTRA FOR REMOVAL OF BOREHOLE CAPTURE BACKGROUND

 #2
20250231317
2025-07-17

Time-Gated Energy Spectra For Removal Of Borehole Capture Background

 #3
20240110471
2024-04-04

NON-RADIOACTIVE TRACERS TO EVALUATE FRACTURING PROCEDURES

 #4
20230375742
2023-11-23

Near-Field Sensitivity of Formation and Cement Porosity Measurements With Radial Resolution in a Borehole

 #5
20220291413
2022-09-15

Systems and methods for determining tubing deviations

 #6
20210231828
2021-07-29

Determination of elemental concentrations from the capture and inelastic energy spectra

 #7
20210132252
2021-05-06

NEAR-FIELD SENSITIVITY OF FORMATION AND CEMENT POROSITY MEASUREMENTS WITH RADIAL RESOLUTION IN A BOREHOLE

 #8
20210109247
2021-04-15

Methods and means for azimuthal neutron porosity imaging of formation and cement volumes surrounding a borehole

 #9
20210003738
2021-01-07

Neutron time of flight wellbore logging

 #10
20200277846
2020-09-03

Non-radioactive tracers to evaluate fracturing procedures

 #11
20200096668
2020-03-26

Methods and means for azimuthal neutron porosity imaging of formation and cement volumes surrounding a borehole

 #12
20200081150
2020-03-12

PULSED NEUTRON AZIMUTHAL MEASUREMENT SYSTEM AND METHOD

 #13
20200081149
2020-03-12

Method for using neutron interaction cross section to interpret neutron measurements

 #14
20190250303
2019-08-15

Methods and means for azimuthal neutron porosity imaging of formation and cement volumes surrounding a borehole

 #15
20190187116
2019-06-20

Systems and methods for detecting a neutron generator operating in air

 #16
20190170897
2019-06-06

Non-radioactive tracers to evaluate fracturing procedures

 #17
20190056525
2019-02-21

Determining a characteristic of a material surrounding a wellbore based on count rates of scattered photons

 #18
20180171788
2018-06-21

Systems and methods for monitoring changes in a formation while dynamically flowing fluids

 #19
20180120474
2018-05-03

Methods and means for azimuthal neutron porosity imaging of formation and cement volumes surrounding a borehole

 #20
20180031725
2018-02-01

Compensated sigma from measurements made by a pulsed neutron instrument

 #21
20170146684
2017-05-25

Neutron-gamma density through normalized inelastic ratio

 #22
20160349398
2016-12-01

Method for using neutron interaction cross section to interpret neutron measurements

 #23
20150247948
2015-09-03

Compensated sigma from measurements made by a pulsed neutron instrument

 #24
20150226874
2015-08-13

Measuring total, epithermal and thermal neutron formation porosities with one single set of neutron detectors and a pulsed neutron generator

 #25
20140343856
2014-11-20

Borehole fluid effect correction for pulsed neutron porosity measurements

 #26
20140339410
2014-11-20

Borehole fluid effect correction for pulsed neutron porosity measurements

 #27
20110313669
2011-12-22

System and method for matching lithology responses of downhole tools having different source energies

 #28
20070151728
2007-07-05

Method to detect low salinity injection water encroachment into oil formations

 #29
20050051718
2005-03-10

Neutron measurement method for determining porosity of a formation surrounding a borehole

 #30
17406379
2023-01-17

Pulsed neutron logging for petrolithium

 #31
15438956
2018-01-09

Systems and methods for monitoring casing cement integrity